1844788401 has 27 divisors (see below), whose sum is σ = 2710314009. Its totient is φ = 1209156552.

The previous prime is 1844788369. The next prime is 1844788409. The reversal of 1844788401 is 1048874481.

It is a happy number.

The square root of 1844788401 is 42951.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1844788401 - 2⁵ = 1844788369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1844788409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13271790 + ... + 13271928.

Almost surely, 2^1844788401 is an apocalyptic number.

1844788401 is the 42951-st square number.

1844788401 is the 21476-th centered octagonal number.

It is an amenable number.

1844788401 is a deficient number, since it is larger than the sum of its proper divisors (865525608).

1844788401 is an equidigital number, since it uses as much as digits as its factorization.

1844788401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The cubic root of 1844788401 is about 1226.4471917105.

The spelling of 1844788401 in words is "one billion, eight hundred forty-four million, seven hundred eighty-eight thousand, four hundred one".